University of Cape Town
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Further results for an Application of Statistical Catch-at-Age Assessment Methodology to Assess US South Atlantic Wreckfish

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posted on 2023-05-11, 10:04 authored by Doug ButterworthDoug Butterworth, Rebecca A Rademeyer

Results of SCAA model runs are presented for an initial set of sensitivities which were specified during a conference call amongst the wreckfish subgroup on 31st October. These include consideration of .the Lytton growth curve, alternative values for natural mortality and stock-recruitment steepness, an open population, domed selectivity, different trends in landings over 2001 to 2008, not assuming the population was at unexploited equilibrium when the catch series commences in 1987, and downweighting the contribution of the catch at length relative to that of the CPUE data in the likelihood.



Department of Mathematics and Applied Mathematics, University of Cape Town